ToRTULACE^.] 183 [Ephemerum. 



Clavis to the Species. 



Leaves nerveless. 



Leaves ovato-lanceolate, spores rough. serratiim. 



Leaves lanceolate-acuminate, spores smooth. minutissimum. 



Leaves nerved. 



Nerve lost in lower half of leaf. intermedium. 



Nerve distinct below. 



Nerve vanishing at apex. cohcerens. 



Nerve excurrent. 



Leaves lane. -subulate, nerve \ width of base. sienophyllum. 



Leaves oblong-linear, nerve i width of base. recurvifoliuiu. 



I. EPHEMERUM SERRATUM {Schreb.) Hampe. 



Leaves ovato-lanceolate, nerveless, serrate. Capsule immersed, 

 glossy purple, oval-globose with a blunt point, spores rough. 

 (T. XXVII, A.) 



Syn. — Phascum serratum Scheeb. de Phasco 9, t. 2 (1770), Spic. Fl. lips. 73 (1771). Web. 

 Spic. fl. goett. 124 (1778). WiGG. Prim. fi. hols. 81 (1780). Dicks. PI. crypt. Fasc. I, 

 1, t. 1, fig. I (1785). Roth Fl. germ, i, 452 (1788) et iii, P. I, 115. Timm Pr. fl. meg. 

 n. 720 (1788). Eng. Bot. t. 460. Schrad. Spic. fl. germ, i, 58 (1794). With. hot. 

 arr. br. veg. 3 ed. iii, 785 (1796). Brid. Muse. rec. II, P. I, 11 (1798), Sp. muse. I, 2 

 (1806), Mant. 6 (1819), Bry. univ. i, 28 {1826). Hull Br. fl. P. 2, 251 (1799). Roehl. 

 Moosg. deutsch. ig (1800), Deutsch. fl. iii, 33 {1813), Ann. wet. ges, i, 183. Hedw. Sp. 

 muse. 23 (1801). Sm. Fl. brit. iii, 1166 (1804). Turn. Muse. hib. 4 (1804). P. Beauv. 

 Prodr. 82 {1805). ScHULTz Fl. starg. 271 (1806). Web. Mohr. Bot. Tasch. 71 (1807). 

 ScHKUHR Deutsch. kr. gew. P. 2, 10, t. 4 (iSio). Schwaeg. Suppl. I, P. I, 6 (1811). 

 VoiT Muse. herb. 9 (1812). La Pyl. Journ. Bot. 1813, p. 285, t. 20, f. 17. Mart. Fl. 

 cr. erl. 124 {1817). Hook. Tayl. Muse. br. 4, t. 5 (1818). Gray Nat. arr. br. pi. i, 710 

 {1821). FuNCK Moost. 2, t. I (1821). Hook. Fl. scot. P. II, 121 (1821), Brit. fl. ii, 2 

 (1833). Nees Hsch. Bry. germ, i, 35, t. 4, f. i {1823). Hueben. Muse. germ. 2 (1833). 

 Hartm. Skand. fl. Mack. Fl. hib. P. 2, 7 (1836). Br. Schimp. Bry. eur. fasc. i, p. 6, 

 t. ± (1837). De Not. Syll. muse. 313 (1838). Wils. Bry. brit. 26, t. 5 (1855). Hobk. 

 Syn. br. m. 26 (1873). 



Phascum stoloniferum Dicks. PI. crypt, fasc III, i, t. 7, f. 2 (1793). With. op. c. 7S6. 

 Hull op. t. 252. Sm. Fl. Brit. .1157, Eng. Bot. t. 2006. 



Phase, velutinum Hoffm. Deutsch. fl. ii, 20 (1796). 



Phase, confervoides Brid. Muse. rec. II, P. I, 12. Roehl. Deutsch. moos. 20. P. Beauv. 

 Prodr. 81. 



Ephemerum serratum Hampe in Flora 1837, P' ^^S- Raeenh. Deutsch. kr. fl. ii, S. 3, 84 

 (1848). C. MuELL. in Bot. Zeit. 1847, p. loi ; Syn. muse, i, 31 (1849). Br. Schimp. 

 Bry. eur. fasc. 42, Mon. 3, t. I (1849). Schimp. Synops. 3 (i860). Berk. Handb. br. 

 m. 304 (1863). De Not. Epil. briol. ital. 742 (i86g). Milde Bry. siles. igo (i86g). 

 Jaeger Ber. der St. Gall. nat. gesells. i86g, p. g8. HusN. Mouss. nord-ouest 32 (1873). 

 JuRATZ. Laubm. oester.-ung. 4 (1882). Lesq. James Mosses N. Amer. 37 (1884). 



Dioicous ; plants very minute, nestling in dense intricate deep green 

 protonema. Leaves nerveless, erecto-patent, 6 — 9, lower very small 

 ovato-acuminate, upper much larger, ovato-lanceolate, the margin 

 coarsely and irregularly serrate to below the middle ; cells lax hyaline, 

 rhombo-hexagonal, upper smaller, more or less incrassate. Caps. 

 immersed, almost sessile, subglobose, shortly apiculate, glossy rufous 

 purple ; calyp. whitish, reaching middle of caps, bi-trilacerate ; spores 

 50 — 100, ferruginous, granulated. Male pi. near the female, fuscescent ; 

 bracts 3, ovato-lanceolate toothed. 

 Hab. — Damp clay fields and ditch-banks ; not rare. Fr. 12—2. 



